Sapphire Substrate Has Become the Main Choice of Blue and Green LED

Sapphire Substrate Has Become the Main Choice of Blue and Green LED

1. Development of sapphire substrate

As an important technical crystal, sapphire is widely used as window material for infrared military device, satellite space technology and high intensity laser. It has become the most ideal substrate material for semiconductor GaN/Al2O3 led, SOI, SOS and superconducting nanostructured films in practical applications. After GaN epitaxial layer was prepared by sapphire substrate and blue LED was successfully produced, blue and green LED achieved blowout, and sapphire substrate gradually became the main choice of blue and green LED.

The application of sapphire substrate to do the screen not only makes it wear-resistant, but also makes more sensitive touch screen, stronger heat conductivity, and light transmittance to ensure a clear picture. So, it is a new choice of smartphone screen. Sapphire, as a mobile phone screen, can be said to be epoch-making innovation and will be the major trend in the future.

2. Advantages of CRYSCORE's sapphire substrate

With more than 12 years of experience, we specialize in producing 4 and 6 inch sapphire substrate and sapphire optical Windows of various sizes. We use optical primary materials with a purity of up to 99.999%, and the wafers surface is of high quality. Customers can design and manufacture specific nanoscale microstructural patterns on sapphire substrates manufactured by us to control the form of LED light output to improve epitaxial quality and enhance internal quantum efficiency and light extraction efficiency of LED. Please feel free to contact us if you need to purchase.

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